The Twins signed Harden to a one-year Minor League contract in December, agreeing to pay him $1 million if he made it to the Majors. Harden, though, has been recovering from surgery on his right shoulder, but felt soreness while throwing a few weeks ago.

Harden hasn’t pitched at the Major League level since 2011 with the Athletics, when he posted a 5.12 ERA in 15 starts between July and September.